<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <h1>商品修改页面</h1>
    <input type="text" v-model="p.id">
    <input type="text" v-model="p.title">
    <input type="text" v-model="p.price">
    <input type="text" v-model="p.num">
    <input type="submit" value="更改" @click="upd()">
</div>
<!--引入axios和vue框架文件-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
    let v = new Vue({
            el:"body>div",
            data:{
                p:{
                    id:"",title:"",price:"",num:""
                }
            },
            methods:{
                upd(){
                    axios.post("/update",v.p).then(function (response) {
                        alert("更改成功");
                        location.href = "/list.html";
                    })
                }
            },
        created:function () {
            axios.get("/selectById"+location.search).then(function (response) {
                v.p = response.data;
            })
        }
    })
</script>
</body>
</html>